Weight-motor



(No Model.)

13. LINDAHL.

WEIGHT MOTOR.

No. 379,816; Patented Mar. 13, 1888.

PATENT rica.

DANIEL LINDAHL, OF .OHESTERTON, INDIANA.

WEIGHT-MOTOR.

SPECIFICATION forming part of Letters Patent No. 379,316, dated March13, 1888.

Serial No. 228,300. (No me :1 e1.)

T 0 ZZ whom it may concern.-

Be it known that I, DANIEL LINDAHL, of Chesterton, in the county ofPorter and State of Indiana, have invented certain new and usefulImprovements in Weight-Motors; and I do hereby declare that thefollowing is afull, clear, and exact description thereof, referencebeing had to the accompanying drawings, and to the letters of referencemarked thereon, which form a part of this specification.

This invention relates to an improved weight motor or device whereby thepower exerted by a descending weight may be employed continuously for aconsiderable length of time in doing light work, such as pumping orchurning.

The invention consists in the matters hereinafter described, and pointedout in the appended claims.

The apparatus herein shown as embodying my invention consists in itsmain features of an elevated horizontal shaft carrying a sprocket-wheelmounted to turn on the shaft and connected by a pawl and ratchet withthe 1atter,a chain passing over the sprocket-wheel, a weight attached tothechain, and a windlass or other equivalent device around which thefree end of the chain is Wound and by which the weight is lifted.

In connection with the main operative parts constructed as above setforth any suitable means may be employed for converting the rotativemovement of the said shaft into a suitable reciprocatory or othermovement that may be required for pumping, churning, or other purpose.Any suitable regulating device may be employed for controlling the speedof the parts under the action of the weight in cases where suchregulating devices are necessary. One preferred form of regulatingdevice is herein shown, comprising an oscillating pendulum applied tocontrol the speed of rotation of a revolving shaft which is driven fromthe main shaft of the apparatus, as will hereinafter fully appear.

In the accompanying drawings, illustrating my invention, Figure 1 is asectional view taken upon line as m of Fig. 2, illustrating amachineembracingoneparticularembodiment of my invention. Fig. 2 is afront elevation of the said machine. Fig. 3 is a detail section takenupon line y y of Fig. 2.

As illustrated in the said drawings, the frame of the apparatuscomprises, mainly, vertical framepieces A A, a base-frame, A, upon whichthe said frame-pieces are attached, and suitable inclined braces, A A

B is a horizontal shaft mounted to rotate in suitable bearings in theupper ends of the said frame-pieces A A.

G is a sprocket-pulley mounted upon said shaft B; D, anactuating-\veight; E, a chain passing over said sprocket pulley andattached to the weight, and F is a Windlass about which the said chainis wound for lifting the weights. The said sprocket-pulley O is mountedto rotate upon said shaft B, and connected therewith by a pawl, 0, uponthe sprocketpulley engaging a ratchet-wheel, 1), upon the shaft. TheWindlass F is mounted upon a shaft, f, provided with a crank, F, bymeans of which the Windlass may be turned by hand for raising theweight.

In the operation of the device embracing the parts above described poweris transmitted to the shaft by the action of the weight D,which pullsdownwardly upon the chain passing over the sprocket-pulley O, andthereby causes a continuous rotation of the shaft during the descent ofthe weight. After the weight has de scended the distance allowed by theheight of the machine-frame, the Windlass is then turned to wind up thechain andlift the weights, a backward movement of the shaft beingavoided in this operation by the pawl-andratchet connection between thesprocket-pulley O and the said shaft. Means are herein illustrated fortransmitting motion from the said shaft D to an oscillating shaft, towhich a churn, pump, or other device requiring reciprocatory movementmay be attached as follows:

G is a sprocketwheel affixed on the shaft B, and H a secondsprocket-wheel mounted upon a shaft,H,which is sustained. in suitablebearings upon the machine-frame at a point considerably below the top ofthe standards A A. A. link belt, G is placed over the wheels G and H fortransmitting motion to the said shaft H. Upon the shaft H is placed acone-pulley, H, stepped or shouldered, as shown, to

receive a belt," and upon an adjacent parallel shaft,I,is placed acorrespondingly stepped or shouldered smaller cone-pulley, I, to whichmotion is transmitted from the pulley ]':I by means of a belt, 1 Byshifting the belt I the shaft I may be driven at a greater or lessspeed, as desired. Upon the said shaft I is placed a spur-wheel,Iprovided with spurs or teeth 2', adapted for engagement with anescapementlever, J, which is mounted upon a rock-shaft, J, arranged atone side of and parallel with the shaft I. Upon the said shaft J issecured a rigid arm, J", to the lower end of which is affixed a pendulumweight, J", said pendulum weight and the lever J being constructed toallow an intermittent rotative movement of the shaft I in the swingingof the pendulum, in a manner heretofore commonly known.

For the convenient actuation of a device operated by a reciprocatorymovementas, for instance, a churn,K--the rock-shaft J may be providedwith a horizontal arm, J", to the outer end of which is connected therod or plunger of the churn. In case, however, itis desired to transmitrotative motion to a machine by means of a belt from themotor,beltpulleys H I may be placed upon the shafts H and 1,respectively, over either of which pulleys a belt may be trained for thepurpose stated, according to the speed or power required in anyparticular case. It will of course be understood that when power istaken from the motor by means of a belt placed over the pulley H thebelt I will serve merely to connect the shaft H with the speedcontrolling device.

A device embracing a single weight, D, chain E, and windlass F obviouslyforms a complete motor; but in cases where it is desired to have a motoradapted to operate for a longer time or for a short time withconsiderable power without necessitating the use of a very high frame ora very heavy weight several sets of weights, sprocketwheels, chains, andwindlasses may be placed side by side in the same frame, with thesprocketwheels mounted upon a common shaft, B, in the manner illustratedin the drawings. This construction enables a much more powerful motor tobe produced without other change than multiplying the said parts. In theuse of a motor thus made all of the weights may obviously be put to workat once, in which case considerable power will be developed in theshaft, or one weight may be thrown into action after another, so as toproduce a continuous action of the weights with relatively small powerfor a long time. In cases where the latter arrangement is employed it isobviously desirable to provide means whereby one weight may beautomatically started or released after the adjacent weight hasdescended spring-pawls F", mounted upon the frame, in the manner shownin the drawings. Said pawl is constructed to engage the upper part ofthe ratchet-wheel, and is provided with long arms or levers f extendingto a point heneath the weight D belonging to the adjacent windlass. Theratchets f and pawls F obviously operate to hold the windlasses fromturning after the weights have been raised, so that said weights willremain immovable and will not operate until said pawls are released bythe contact of a descending weight with the said arm f In the operationof this device the weight nearest the regulating device is firstreleased and allowed to descend until it reaches the lower limit of itsmovement, where it strikes the arm of the pawl belonging to the windlassnearest to it, thereby releasing said windlass and allowing the descentof the second weight. The second weight similarly releases the thirdweight, and so on until all of the weights present in the particularmachine have been released and allowed to operate. It is entirelyobvious that when several weights acted on by a single shaft areemployed the pawl-and-ratchet connections between the sprocket-wheelsand shaft will allow the said shaft to turn freely in thesprocketwheels, which are held stationary by the chains belonging to theweights which are not in operation.

To provide means for stopping the motor when necessary, Ihave placedupon theshaft H a friction-pulley, L, which is acted upon by abrake-shoe, M, attached to a brake-lever, M, pivoted at m to the frame,and provided with a catch, m, which may engage a stud or projection, m",upon the frame, for holding the brake-shoe in contact with said pulleyL.

I claim as my invention- 1. A weight-motor comprising a revolving shaft,two or more pulleys mounted upon the shaft, pawls and ratchetsconnecting the pulleys with the shaft, chains passing over the pulleys,weights attached to the chains, windlasses for the weights, means,consisting of a detent, for holding one of the windlasses from rotation,and means, comprising an arm extending into the path of a rotating partof an adjacent windlass, for automatically releasing said windlass uponthe descent of the weight belonging to an adjacent windlass,substantially as described.

2. The combination, with the pulley-shaft and two sets of pulleys,chains, weights, and windlasses, of a ratchet and pawl holding one ofsaid windlasses from rotation, and an arm attached to said pawl andextending into the path of the weight belonging to the other windlass,substantially as described.

In testimony that I claim the foregoing as my invention I aflix mysignature in presence of two witnesses.

DANIEL LIN DAHL.

Witnesses:

G. CLARENCE PooLE, CHARLES T. LORING.

